Covalently closed circular DNA from Micrococcus lysodeikticus cells infected with phage N1.
D001435:Bacteriophages; D004279:DNA, Viral / Q000032:analysis*; D008837:Micrococcus / Q000032:analysis*; D008854:Microscopy, Electron; D014461:Ultracentrifugation
D004279:DNA, Viral